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Doctor insights on: Cell Membrane Dialysis Tubing

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How could diffusion across a biological membrane differ from diffusion across dialysis tubing?

How could diffusion across a biological membrane differ from diffusion across dialysis tubing?

Diffusion difference: Diffusion (D) is the process of passive (without loss of energy) movement of any substance from higher concentration to the lower concentration of that substance. D depends on the membrane and varies from membrane to membrane. There is no diffusion across dialysis tubing. Dialyzer (D) membranes vary as well so they is no accurate way to correlate the rate of D from a biological membrane and D. ...Read more

Dr. Quresh Khairullah
520 doctors shared insights

Dialysis (Definition)

Simple answer is that it is a medical technology used primarily to provide an artificial replacement for lost kidney function in people with renal failure. Hemodialysis remove wastes and excess water from the blood by circulating blood outside the body through an external filter, called a dialyzer. Blood and dialysate flow through in opposite directions and the ...Read more


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Dialysis shunt and dialysis fistula the same?

Dialysis shunt and dialysis fistula the same?

No: A shunt, or graft, is a piece of synthetic tubular material inserted under the skin that dialysis needles insert directly into. A fistula is a connection of your own artery to a vein. Needles are then placed into the vein when the wall thickness matures. ...Read more

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Could patient on peritoneal dialysis swim?

Yes: Only once it heals well after initial insertion. Three to six months minimum. You still need to be very careful with it ...Read more

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Can snakevenom lyse cell membrane?

Can snakevenom lyse cell membrane?

Yes: There's a variety of different toxins secreted by the salivary glands of venomous snakes. Depending on the species, some venoms attack nerves(neurotoxins), heart muscle(cardio toxins), blood cells (hemotoxins), cell membranes (phospholipases). The latter would cause lysis of cell membranes. ...Read more

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Why are umbilical cord stem cells sometimes uses along with donor cells in an allogeneic bone marrow transplant?

Why are umbilical cord stem cells sometimes uses along with donor cells in an allogeneic bone marrow transplant?

One of the other: Stem cells can be obtained from 3 different sources: from Bone marrow of the Donor, blood of the donor or stem cells from umbilical cord. But we have to give an adequate number(Dose) of stem cells in order to have full protection. So combining them may only be needed because of inadequate number of stem cells from one of the sources ...Read more

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Risks of kidney transplant and plasma exchange?

Risks of kidney transplant and plasma exchange?

Not very harmful: If someone spoke to you about plasma exchange, then the issue is the presence of anti-donor antibodies in the recipient. The procedure removes the plasma containing the antibodies. The procedure is used either at the time (or just before) the transplant to prevent rejection in sensitized patients. Or, after the transplant if antibody mediated rejection has occurred. ...Read more

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Umbilical cord stem cell collection is available everywhere now?

Umbilical cord stem cell collection is available everywhere now?

Less used that fat: Use of adult mesenchymal stem-stromal cells (mscs) are currently in clinical trial in us/internationally. Trend is toward use of fat derived mscs, havested by liposuction, isolated and concentrated in tissue culture. Early reports suggest significant improvement in neurological, autoimmune and organ functions. Many more mscs in fat than bone marrow making ad-msc the center of most research now. ...Read more

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Will renal cell carcinoma spread to the hip bone?

Will renal cell carcinoma spread to the hip bone?

Its possible. : When renal cell carcinoma metastasizes, it is most likely to spread to neighboring lymph nodes, the lungs, the liver, the bones, the adrenal glands, or the brain. Spread to the bone is often to the spine, but may be anywhere. Radiotherapy is often used in in cases of bone metastases, to reduce pain and lower the risk of pathologic fracture. ...Read more

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Life expectancy of myeloma patients after autologous stem cell transplant?

Life expectancy of myeloma patients after autologous stem cell transplant?

Myeloma : There are many things that go into predicting life expectancy of somebody with myeloma who has an autologous stem cell transplant. The rough estimate for somebody getting a transplant in first remission is about 6-7 years now. However, this is something your oncologist or transplant doctor can talk to you about with more specific information. ...Read more

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Apheresis plasma return failure and swelling during double red blood cell donation procedure, what does this mean?

Apheresis plasma return failure and swelling during double red blood cell donation procedure, what does this mean?

Vein perforation: The message is just the machine reporting it could not return the plasma (=failure). The swelling most likely means the needle unknowingly punctured the back wall of the vein--so drawing was OK, but return allowed it to leak out and make a bruise (that might be light in color since the RBCs were removed). Local warm compresses should help resolve it quicker. ...Read more

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Blood has 4 key components: white&red cells, platelets & plasma. Is vaginal transudate made of whole blood plasma? If no, then what is transudate?

Blood has 4 key components: white&red cells, platelets & plasma.  Is vaginal transudate made of whole blood plasma?  If no, then what is transudate?

Modified plasma: Contrary to what people believe, the vagina doesn't increase secretions with arousal, instead it just decreases its usual resorption of fluid by altering the effectiveness of ion channels. The vessels draining the vagina constrict as well so reabsorption is inhibited. Essentially it is plasma, but many of the ions are absorbed. The cellular components cannot penetrate through capillaries. ...Read more

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What indication of hemodialysis peritoneal dialysis?

What indication of hemodialysis peritoneal dialysis?

Kidney failure: Hemodialysis and peritoneal dialysis are 2 effective types of treatment for kidney failure. Kidney function generally needs to be less than 10% before dialysis is needed. Kidney failure can be permanent or reversible. Kidney doctors (nephrologists) need to be involved in evaluation and treatment of kidney failure. There are 6 stages depending on severity. Stages 4-6 require specialist care. ...Read more

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2 episodes of sudden bright red blood drain through the drain tube 3 weeks post renal transplant. Creatinine, CT normal. Possible leak sources ?

2 episodes of sudden bright red blood drain through the drain tube 3 weeks post renal transplant. Creatinine, CT  normal. Possible leak sources ?

Many sources: It could be serious bleeding from the connection of the blood vessels or it could be minor muscle or soft tissue bleeding. Make sure your coordinator and surgeon assess you. ...Read more

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In CSF Volume=2.5mL total protein=119mg/dl Appearnce=Clear Suger=55mg/dl Cell count=5mm3 Rbcs=5mm3 Lymphocytes=100% Neutrophils=0% Is it GBS ?

In CSF Volume=2.5mL
total protein=119mg/dl
Appearnce=Clear
Suger=55mg/dl
Cell count=5mm3
Rbcs=5mm3
Lymphocytes=100%
Neutrophils=0%
Is it GBS ?

Possibly: Without knowing symptoms and history difficult to say for sure but the elevated protein with relatively normal cell count is something encountered in GBS. ...Read more

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Pancreatectomy with autologous islet cell transplantation: what does this mean?

Saving insulin: When an islet cell transplant has to be performed it means that the pancreatectomy was total. The pancreas is an exocrine (digestive juice) and endocrine gland from the Islets of Langerhans. When all are removed, islet transplant helps retain endocrine activity including insulin production. ...Read more